Product comparison · 2 memory modules

Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor vs Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen

12specifications compared
4differ
8identical
3known for one product only

Key differences

The Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen has 2 GB more internal memory than the Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor (4 GB vs 2 GB). The Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor has 2 more CAS latency than the Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen (9 vs 7). Memory layout (modules x size): 2 x 1 GB on the Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor, 1 x 4 GB on the Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen. Buffered memory type: Unregistered (unbuffered) on the Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor, Registered (buffered) on the Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen.

Internal memory
- 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor:2 GB
- 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen:4 GB
Memory layout (modules x size)
- 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor:2 x 1 GB
- 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen:1 x 4 GB
CAS latency
- 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor:9
- 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen:7
Buffered memory type
- 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor:Unregistered (unbuffered)
- 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen:Registered (buffered)

Side by side

Differences highlightedShow differences only

Comparison of 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor, 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen
15 specifications	A Kingston Technology 2GB 1333MHz DDR3 ECC CL9 DIMM (Kit of 2) with Thermal Sensor View product	B Kingston Technology 4GB, 1066MHz, DDR3, ECC Reg w/Parity CL7 DIMM Quad Rank, x8 w/Therm Sen View product
Features4 differ
Internal memoryDiffers	2 GB	4 GB
Memory layout (modules x size)Differs	2 x 1 GB	1 x 4 GB
Internal memory type	DDR3	DDR3
Memory form factor	240-pin DIMM	240-pin DIMM
ECC	Yes	Yes
CAS latencyDiffers	9	7
Memory bus	72 bit	72 bit
Buffered memory typeDiffers	Unregistered (unbuffered)	Registered (buffered)
Memory voltage	1.5 V	1.5 V
Memory type	DDR3	DDR3
Lead plating	Gold	Gold
Module configurationKnown for one	Unknown — not stated by the source	512M X 72
Other featuresidentical
Chips organisation	X8	X8
Bus clock rateKnown for one	1333 MHz	Unknown — not stated by the source
Form factorKnown for one	240-pin DIMM	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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